Spiniferella cornuta subsp. laevimura

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subsp. laevimura (Davey and Williams, 1966a, p.44-45, pl.4, fig.5) Williams et al., 1998, p.566. Holotype: Davey and Williams, 1966a, pl.4, fig.5; Bujak et al., 1980, pl.4, figs.9,12. Originally Hystrichosphaera cornuta var. laevimura, subsequently Spiniferites cornutus subsp. laevimurus, thirdly (and now) Spiniferella cornuta subsp. laevimura. Taxonomic senior synonyms (at subspecific rank): Hystrichosphaera cornuta var. cornuta (as Spiniferites cornutus subsp. cornutus, now Spiniferella cornuta subsp. cornuta), according to Cookson and Eisenack (1974, p.62) - however, Below (1982c, p.33) retained Hystrichosphaera cornuta var. laevimura (as Spiniferites cornutus subsp. laevimurus, now Spiniferella cornuta subsp. laevimura). Taxonomic junior synonyms (as subspecific rank): Spiniferites cornutus var. crassifurcatus (as Spiniferites cornutus subsp. crassifurcatus), and Spiniferites cornutus var. normalis (as Spiniferites cornutus subsp. normalis), both according to Below (1982c, p.33). Age: Early Eocene.Spiniferella cornuta

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